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COLB
Columbia Banking Systems Inc
stock NASDAQ

At Close

Aug 14, 2026 3:59:59 PM EDT

32.70USD+0.801%(+0.26)2,543,430

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-32.44)0

After-hours

Aug 14, 2026 4:07:30 PM EDT

32.73USD+0.092%(+0.03)492

OverviewOptionsHistoricalExchange VolumeShortsMore

COLB Volume Aug 14, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	48.09	1,007,220	36.14
Nasdaq GSM	29.24	612,426	36.42
IEX	7.39	154,771	10.07
NYSE Arca	4.67	97,851	6.17
Cboe BZX	3.06	64,152	4.07
Cboe EDGX	3.01	62,962	2.61
NYSE	1.25	26,114	1.50
Cboe BYX	0.82	17,197	0.50
MEMX	0.80	16,736	0.80
Cboe EDGA	0.59	12,272	0.42
MIAX Pearl	0.42	8,891	0.50
NYSE National	0.23	4,748	0.32
Texas Stock Exchange LLC	0.17	3,508	0.04
NYSE American	0.10	2,167	0.10
Nasdaq BX	0.06	1,201	0.11
Nasdaq PHLX	0.05	1,122	0.10
24X National	0.04	788	0.02
CHX	0.01	136	0.10
LTSE	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

COLB Nutrition Facts

0.73 servings per container

Serving size

2.88M

Calories

2.09M

% Day

% Avg

Off Exchange¹ 1M

48.09%

36.14%

Nasdaq GSM 612K

29.24%

36.42%

IEX 155K

7.39%

10.07%

NYSE Arca 98K

4.67%

6.17%

Cboe BZX 64K

3.06%

4.07%

Cboe EDGX 63K

3.01%

2.61%

NYSE 26K

1.25%

1.50%

Cboe BYX 17K

0.82%

0.50%

MEMX 17K

0.80%

Cboe EDGA 12K

0.59%

0.42%

MIAX Pearl 9K

0.42%

0.50%

NYSE National 5K

0.23%

0.32%

Texas Stock Exchange LLC 4K

0.17%

0.04%

NYSE American 2K

0.10%

Nasdaq BX 1K

0.06%

0.11%

Nasdaq PHLX 1K

0.05%

0.10%

24X National 788

0.04%

0.02%

CHX 136

0.01%

0.10%

LTSE 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

COLB Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 1,007,220, which is 48.09% of today's total volume.
Today's Lit volume is 1,087,042, which is 51.91%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 36.14%.
The average Lit volume has been 63.86%.

COLB Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

Cboe EDGX

NYSE

Cboe BYX

MEMX

Cboe EDGA

MIAX Pearl